Watch winding and hands-setting mechanism



E. PELLATON.

WATCH WINDING AND HANDS SETTING MECHANISM.

' APPLICATION FILED ram/10,1921.

1,388,755. Patented Aug. 23, 1921.

3)/ ym my .UNITED sTATEs PATENT "oFFlcE EnmoNn TELLATON, or LElLocLnswrTzEErANn, As'srGNon To EAEEIQUES nEs MoNTnEs ZENITH sUccEssEUa DE EAERIQUES nEs MONTRES ZENITH GEORGES j FAVRE-TACOT & GIE.

WATCH WNDING HANDS-SETTING MECHANISM.

Speciication of Letters Patent.. Patented Aug',b 23,)- 1921.

Application mea mi 1o, 1921.` serial N6. 468,381.

T o all whom it may concern: j i n Be it known that I, EDMoND PELLATON, a citizen of the Swiss Republic, and resident of Le Locle, Switzerland, haveinvented newr 5 and usefullmprovements in Watch VVinding rand HandseSetting Mechanisms, of vwhich the following is a full, clear, and exact specitication. t l

Some known watch winding and hands setting mechanisms comprise, in combination with a hands setting lever two springs, one of which, actuating the hands setting lever, tends to bring a slidably mounted pinion into engagement with a winding inion by means of the setting lever, while t e other spring tends, contrary tothe first, to place the said lever in a settingposition by means of a part Y which is constantly in cooperation with the winding spindle and` on which. part the second spring acts. Such mechanisms have the following drawbacks (1) The ,second spring has to be so strong that, while employed for a setting operation as described above, it can overcome the iirst spring actuating' the setting lever for a winding operation and annul i its effect. (2) The `iirst spring has thus to beso weak that, in a. setting operation, it can be overcome by the second spring whose di- 'mensions, and consequently'its strength, are

limited for reasons of wear of the spring and notch stop device on the pendant, which, when the setting lever is operated-fora winding voperation under the action of the first and weak spring, has for resulta too feeble unlocking action that does notV insure proper working.` l n y The, difference in strength between the vtwo springs is diiiicult to adjust exactly as desired and renders the winding and setting mechanism very sensitive and consequently diiiicult to make it work normally without settling operations when` denitely associated with the clockwork.

The object of the present invention is an improved winding andy setting mechanism Vfor watches which obviates such drawbacks. The^improved mechanism comprises, in known manner, two levers each pivotable about a fixed axis and adapted to engage, the

pinionand the second with the winding spindle, butv is characterized, accordin to the invention, by the combination of t ese first or setting lever with a slidably mounted' y position.

this latter. f f

an intermediate pivoting part arranged 4to actuate the two levers.V This .spring acts directly` only on the said part which, by

pivoting can assume, under the control oi?v the second lever, dii'erent positionsin one of which it bears as much `on the first as on the second lever and thereby brings kthe setting lever and vthe, slidable pinion to winding position, while in another position, that for setting, 1t acts directly only on the' second lever so that, during at least apart of lts movement from the winding position to the setting position, and so long as it is in the setting position, the setting lever may, be free from all action tending to retain it ,in the winding position and T Fig. 2 is a view showing it in the setting This form of construction comprises 'a lever 1 which has two noses 9 and 10, vand is adapted to turn about affixed axis 16, a lever 2 with two noses 11 and 12 and pivotable about a fixed axis 17 on which itcan also slide by means of a slot 27y that guides it, a hands setting lever 3 with three noses 13, 14 and 15, pivotable about the fixed pivot 18, and a spring 4 acting directly on the lever 2 in a manner tending to` turn it always in the same direction (fromv right `to `left in this particular case).` The lever 2 can, as will be seen later on, turn about the axis 17 fixed with respecty to the two axes 16 and 18 of levers 1 and, and also be displaced with respect to the axis 17 in a direction across.;` p

- The free end of the nose'r-ll) ofilever 1 carries a pin 8 that engages a groove 2O in the winding spindle Tl which comprises, in

known manner, a cylindrical part 2S and a i part 29 of square section.. A winding toothed wheel 21, controlling the winding elements, can turn freely about the part 28 without being displaced along its axis, and

a slidable pinion 22 can be displaced alongI 'the part 29 without being. able :to turnwith respect tothe part that is of square. cross section. The slidable pinion 22 can engage byits teeth 25, on the one hand, with movtwo levers with one single Spring and with able hands ,setting gears `(i and 7, and,

' winding spindle.

on the other hand, with the toothed Wheel 21 by means of the gullet teeth 24. Y

The free end of the nose 14 of the lever 3 engages in a groove 23 on the slidable pinion 22.

The winding spindle T is controlled 'by the Squared portion 29, in known manner. It can `be drawn out or pushed by the-usual operating knob (not shown) and be held in each of these two positions-by a 'suitablel y2O; thelever 2, actuated by the spring 4 bears, onthe one hand, with its nose 11 on the-nose 9 of lever 1, and on the other hand,

with itsnose 12 on the nose '13 of lever 3,

the end of lthe V'slot'27 on lever 2 being a certain distance from the pivot 1'? (or just touching'this pivot without bearing against it) so that the lever 2 is supported only by its noses 11 and`12, assistance fromy the pivot 17 being, excluded. Owing to the action of spring 4, the lever 3 thus tends, by reason 'of the nose'12'of lever 2 engaging ythe nose 13, to turn from `left-itc right (in the direction ofthe arrow) and to hold the slidable pinion 22 in engagement with the toothed wheel "21.

'It -is'easily*understood that by `turning the operatingl knob the square part 19 will turn theV spindlefT andthatfthe teeth 24, locking and unlockingin the known manner of laratchetu'nder the action of spring 4, will operate the'toothed wheel 21- that controls the Winding mechanism. In unlocking, the sliding pinion 22 vturns slightly :from right to left the lever 3 which by `means of its nose 13 pushing against the nose 12 offlever 2 causes this latter to pivot from right `to left andv against the' action of-springf4 about the point of Icontact of its nose 11 'with the nose'9 of lever 1.

1A? change-from the winding position to the hands setting position shown'in F ig. 2

is effected by pulling out, by means of the operating knob, lthe square partl19 and the Underthe action of the spring-4, the lever2 and lever 1, the winding spindle T is pushedrupwardly by the pin`8, while the vlever 2,'at the bottom of its slot 27, abuts against the pivot 17, around which it tends to'turn from right to leitt, rits nose 12abandoning-the`nose 13-of the hand-setting lever 3 `which is thus liberated ifromf'anylaction tendingito maintain it in thewinding po'sition,-which-is contrary to `whatlis found in the knownmecha'nisms mentioned if above ``and cemprising two:

springs, one of which tends always to maintain the Ihands setting lever in winding position-andwhich has, for a vhands setting operation to be overcome by .the second spring. The nose 9 of lever 1 engages against thefnose 15 of the lever 3 and causes it to pivot from right to left till the slidable pinion 22, disengaging itsteethfrom the toothed wheel 21, engages by its teeth 25 -with the movable hand-setting gear 5.

The nose 15 of lever 3 is then engaged under the claw 26 on nose 9 of the lever 1 which then locks lever 3 yand prevents its turning from leftto right. By turningthe operating knob, the hands setting parts are actuated.V A

The rle of the claw 26,v with which is engaged the nose 15, is to preventfduring the setting operation, the denture 22 of the sliding pin-ion lfrom `disengaging from the Vgear `5 when the hands setting ngears. are hardly engaged together, `an inconvenience that presents itseltl in some known mechanisms.

On pressure being again applied'to the knob the nose l'of lever 3 is disengaged and turns romright to left the lever 1 which causes to turn from left to right around axis 17kthe lever 2 which, with its 'nose 12, causes the lever 3 to turn from left to right. The mechanism is' thus returned, against the action of spring 4,to` the winding position (Fig. 1). l

The bolt A, brought into ythe position shown in broken linesin Fig. 1, serves, by its inclined portionBO-'engaging the pin 8 projecting also `from the leverl on the side opposite tospindle T, to maintain the mech- Vaiiism inthe `Winding position while the clockwork is withdrawn from the casing and-is nolonger controlled by' the square part 19.

The mechanism described is much 'stronger than the previously mentioned known mechanisms and operates much more surely. It isy placed under the dialfin suoli a way that by removing this latter the mechanism kis completely visible and is' quite `accessible without any more trouble,` which rom a practical point of View is ofl great advantane.

what i anim isei 1.*1n ai winding'and hands setting mechanism for watches,- anactuatingspindle, a winding pinion thereon, a hands *setting gear, a"s`lidablefpinion on the actuating spindle arranged to be fcoupled alternately with the winding pinion `or Lwith-the hands setting gear, two levers each pivotable about a liiXed-axis and engaging,-the first orE hands 'setting' lever, with said slidable pinionfand the' l second with said' l"winding 1 spindle,Y one single spring for said two levers( and a common rocking member between lthem and 'said spring, the latterbeinglfarranged *so as to ting gear, two levers each pivotable aboutV a fixed axis and engaging, the first or hands setting lever, with said slidable pinion and the second with said winding spindle, one

single spring for said two levers and a common rocking lever between them and said spring, arranged to turn about a fixed axis and to also be displaceable transversely thereto, said spring being arranged so as to directly attack said common rocking lever, substantially as and for the purpose described.

3. In a winding and hands setting mechanism for watches, an actuating spindle, a winding pinion thereon, a hands setting gear, a slidable pinion on the actuating spindle arranged tobe coupled alternately with the winding pinion or with the hands setting gear, two levers each pivotable about a fixed axis and engaging, the first or hands setting lever, with said slidable pinion and the second with said winding spindle, operating noses on said two levers, one single spring for said two levers and a common rocking lever between them and said spring, noses on said common rocking lever to engage with the noses of said two levers to act thereon, said spring being arranged so as to directly attack said common rocking lever,

substantially as and for the purpose described.

4. In a winding and hands setting mechanism for watches, an actuating spindle, a winding pinion thereon, a hands setting gear, a slidable pinion on the actuating spindle arranged to be coupled alternately with the winding pinionor with the hands setting gear, two levers each pivotable about a fixed' axis and engaging, the first or hands setting lever, with said slidable pinion and the second with said winding spindle, one single spring for said two levers and a common rocking lever between them and said spring, a fixed axis for said common rocking lever, the latter being provided with a slot for free angular movement and transverse displacement on its fixed axis, said spring being arranged so as to directly attack said common rocking lever, substantially as and for the purpose described.

5. In a winding and hands setting mechanism for watches, an actuating spindle, a winding pinion thereon, a hands setting i ear, a slidable pinion'on the actuating spinle arranged kto be coupled alternately with the winding pinion or with the hands sety ting gear, two levers each pivotable about a fixed axis and engaging, the first or hands setting lever, with said slidable pinion and the second with said winding spindle, one singleY spring for said two levers and a common rocking member between them and said spring, the latter being arranged so as to directly attack said common rocking member, and interlocking means being provided between the said two levers to lock the hands setting lever in its setting position, substantially as and for the purpose described.

6. In a winding and hands setting mechanismv for watches, an actuating spindle, a winding pinion thereon, a hands setting gear, a slidable pinion on the actuating spindle arranged to be coupled alternately with the winding pinion or with the hands setting gear, a coupling ratchet device between said slidable pinion and the winding pinion, two levers each pivotable about a fixed axis and engaging,the first or hands setting lever, with said slidable pinion and the second with said winding spindle, one single spring for the two levers and a common rocking lever between them and said spring, the latter being arranged to directly attack said rocking lever and to serve at the same time as coupling spring for said ratchet device in the winding position of the mechanism, substantially as and for the purpose described.

7 In a winding and hands setting mechanism for watches, an actuating spindle, a winding pinion thereon, a hands setting gear, a slidable pinion of the actuating spindle arranged to be coupled alternately with the winding pinion or with the hands setting gear, two levers each pivotable about a fixed axis and engaging, the first or `hands setting lever, with said slidable pinion and the second with said winding spindle, one single spring for said two levers and a common rocking lever' between them and said` spring,

the latter being arranged so as to directlyr attack said common rocking lever, a manually operable locking device `being provided for holding for certain cases the mechanism in the windingposition, substantially as and for the purpose described.

In witness whereof I have hereunto signed i my name this 26th day of April, 1921, in the. presence of two subscribing witnesses.

PELLATON. 

